1. Harris Interactive. The Harris Poll Shows Number of “Cyberchondriacs” – Adults Who Have Ever Gone Online for Health Information – Increases to an Estimated 136 Million Nationwide; 2006. Available at: http://www.harrisinteractive.com/vault/Harris-Interactive-Poll-Research-FOR-IMMEDIATE-RELEASE-2006-08.pdf (21.09.2011).
2. Fox S. Pew Internet & American Life Project: The Engaged E-Patient Population; 2008. Available at: http://www.pewinternet.org/Reports/2008/The-Engaged-Epatient-Population.aspx.
3. Innovations in communication: the Internet and the psychology of vaccination decisions;Betsch;Eurosurveillance,2011
4. The Defining Characteristics of Web 2.0 and their Potential Influence in the Online Vaccination Debate;Witteman,2012
5. Opportunities and Challenges of Web 2.0 for Vaccination Decisions;Betsch,2012